Evaporative cooler



FIG. 1 is a top perspective view as seen from above and to the right of the cooler as seen in FIG. 3;

FIG. 2 is a bottom perspective view as seen from below and to the right of the cooler as seen in FIG. 3;

FIG. 3 is a front elevational view of the cooler;

FIG. 4 is a rear elevational view of the cooler;

FIG. 5 is a side elevational view of the left side of the cooler as viewed in FIG. 3;

FIG. 6 is a side elevational view of the cooler as viewed from the right in FIG. 3;

FIG. 7 is a top view of the cooler; and,

FIG. 8 is a bottom view of the cooler. 

We claim the ornamental design for an evaporative cooler, as shown and described. 